Slide 26 of 173
Notes:
Even though a circuit doesn’t have any defects that cause incorrect function, it may contain defects that cause slow function. The delay fault models are attempts to model these types of defects and their effect on the circuit. The two models currently used are the gate delay or transitional fault model, where a single gate is assumed to take too long to produce an output, and the path delay fault model, where certain paths in the circuit may take too long to be exercised.
